Power station



FIG. 1 is a top perspective view of a power station;

FIG. 2 is another top perspective view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a front elevation view thereof;

FIG. 5 is a left elevation view thereof;

FIG. 6 is a right elevation view thereof; and,

FIG. 7 is a top plan view thereof.

The broken line showing of portions of the power station forms no part of the claimed design. 

CLAIM The ornamental design for a power station, as shown and described. 